Provided is an optical transmission substrate including: a first substrate; an optical
waveguide which has clad covering a core and a periphery of the core and extends on an …

(57) ABSTRACT A differential transmission circuit includes a pair of transmis sion line
conductors and a ground conductor layer, wherein the pair of transmission line conductors …

According to the above-mentioned Rambus solu tion having semiconductor-chip-to-
semiconductor-chip interconnections, it is difficult to change the length of each of the wiring …

(57) ABSTRACT A method for manufacturing a semiconductor optical device includes:
forming a first resist pattern on a top Surface of a laminated semiconductor structure; forming …

(54) METHOD FOR MANUFACTURING(56) References Cited SEMICONDUCTOR DEVICE,
SEMICONDUCTOR DEVICE, AND US PATENT DOCUMENTS ELECTROOPTICAL DEVICE …

(57) ABSTRACT A semiconductor optical element includes an optical waveguide formed on
a semiconductor Substrate, which includes: a single mode guide portion which guides input …

An optical transmission device includes: a Switching config ured to be capable of Switching
a transmission path to which light is input from a first transmission path to a second trans …

Provided are an optical module, an optical sensor using the optical module, and a method of
manufacturing the optical module. The optical sensor includes: a semiconductor Sub strate …

(57) ABSTRACT A method for manufacturing a Semiconductor optical device is provided.
The device includes first and Second optical parts disposed on a Semiconductor Substrate …

An optical module has a Support board, an optical transmis sion path, and at least a single
optical element having a light receiving function or a light emitting function provided on the …